4 easy questions about institution of government. This is not related to school or homework, just for my own knowledge. answers must be accurate and...

4 easy questions about institution of government. This is not related to school or homework, just for my own knowledge. answers must be accurate and cant just be a few words.

1.    Explain how judicial review works as a check against Congress.

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2.    Describe some roles that the president plays in the U.S. government?

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3.    What is the civil service and how do people join?

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4.    What is the president's cabinet and what is their responsibility?

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